More than 500 high school students travel by train to attend the national college entrance exam, or gaokao, at a test venue in Oroqen Autonomous Banner, North China’s Inner Mongolia Autonomous Region, June 5, 2017. For 15 years, students in the banner’s Dayanshu Town have had to take trains to travel the 135 kilometers to sit the test in Alihe Town. The region is home to people of many ethnic groups, including Oroqen, Daur and Ewenki. (Photo: China News Service/Wang Shu)